OK, let's crack this. We're given 609 and our task is to multiply it by 112. Essentially, we'll be adding 609 to itself 112 times.
Step 1: 0 + 609 = 609
Step 2: 609 + 609 = 1218
Step 3: 1218 + 609 = 1827
Step 4: 1827 + 609 = 2436
Step 5: 2436 + 609 = 3045
Step 6: 3045 + 609 = 3654
Step 7: 3654 + 609 = 4263
Step 8: 4263 + 609 = 4872
Step 9: 4872 + 609 = 5481
Step 10: 5481 + 609 = 6090
Step 11: 6090 + 609 = 6699
Step 12: 6699 + 609 = 7308
Step 13: 7308 + 609 = 7917
Step 14: 7917 + 609 = 8526
Step 15: 8526 + 609 = 9135
Step 16: 9135 + 609 = 9744
Step 17: 9744 + 609 = 10353
Step 18: 10353 + 609 = 10962
Step 19: 10962 + 609 = 11571
Step 20: 11571 + 609 = 12180
Step 21: 12180 + 609 = 12789
Step 22: 12789 + 609 = 13398
Step 23: 13398 + 609 = 14007
Step 24: 14007 + 609 = 14616
Step 25: 14616 + 609 = 15225
Step 26: 15225 + 609 = 15834
Step 27: 15834 + 609 = 16443
Step 28: 16443 + 609 = 17052
Step 29: 17052 + 609 = 17661
Step 30: 17661 + 609 = 18270
Step 31: 18270 + 609 = 18879
Step 32: 18879 + 609 = 19488
Step 33: 19488 + 609 = 20097
Step 34: 20097 + 609 = 20706
Step 35: 20706 + 609 = 21315
Step 36: 21315 + 609 = 21924
Step 37: 21924 + 609 = 22533
Step 38: 22533 + 609 = 23142
Step 39: 23142 + 609 = 23751
Step 40: 23751 + 609 = 24360
Step 41: 24360 + 609 = 24969
Step 42: 24969 + 609 = 25578
Step 43: 25578 + 609 = 26187
Step 44: 26187 + 609 = 26796
Step 45: 26796 + 609 = 27405
Step 46: 27405 + 609 = 28014
Step 47: 28014 + 609 = 28623
Step 48: 28623 + 609 = 29232
Step 49: 29232 + 609 = 29841
Step 50: 29841 + 609 = 30450
Step 51: 30450 + 609 = 31059
Step 52: 31059 + 609 = 31668
Step 53: 31668 + 609 = 32277
Step 54: 32277 + 609 = 32886
Step 55: 32886 + 609 = 33495
Step 56: 33495 + 609 = 34104
Step 57: 34104 + 609 = 34713
Step 58: 34713 + 609 = 35322
Step 59: 35322 + 609 = 35931
Step 60: 35931 + 609 = 36540
Step 61: 36540 + 609 = 37149
Step 62: 37149 + 609 = 37758
Step 63: 37758 + 609 = 38367
Step 64: 38367 + 609 = 38976
Step 65: 38976 + 609 = 39585
Step 66: 39585 + 609 = 40194
Step 67: 40194 + 609 = 40803
Step 68: 40803 + 609 = 41412
Step 69: 41412 + 609 = 42021
Step 70: 42021 + 609 = 42630
Step 71: 42630 + 609 = 43239
Step 72: 43239 + 609 = 43848
Step 73: 43848 + 609 = 44457
Step 74: 44457 + 609 = 45066
Step 75: 45066 + 609 = 45675
Step 76: 45675 + 609 = 46284
Step 77: 46284 + 609 = 46893
Step 78: 46893 + 609 = 47502
Step 79: 47502 + 609 = 48111
Step 80: 48111 + 609 = 48720
Step 81: 48720 + 609 = 49329
Step 82: 49329 + 609 = 49938
Step 83: 49938 + 609 = 50547
Step 84: 50547 + 609 = 51156
Step 85: 51156 + 609 = 51765
Step 86: 51765 + 609 = 52374
Step 87: 52374 + 609 = 52983
Step 88: 52983 + 609 = 53592
Step 89: 53592 + 609 = 54201
Step 90: 54201 + 609 = 54810
Step 91: 54810 + 609 = 55419
Step 92: 55419 + 609 = 56028
Step 93: 56028 + 609 = 56637
Step 94: 56637 + 609 = 57246
Step 95: 57246 + 609 = 57855
Step 96: 57855 + 609 = 58464
Step 97: 58464 + 609 = 59073
Step 98: 59073 + 609 = 59682
Step 99: 59682 + 609 = 60291
Step 100: 60291 + 609 = 60900
Step 101: 60900 + 609 = 61509
Step 102: 61509 + 609 = 62118
Step 103: 62118 + 609 = 62727
Step 104: 62727 + 609 = 63336
Step 105: 63336 + 609 = 63945
Step 106: 63945 + 609 = 64554
Step 107: 64554 + 609 = 65163
Step 108: 65163 + 609 = 65772
Step 109: 65772 + 609 = 66381
Step 110: 66381 + 609 = 66990
Step 111: 66990 + 609 = 67599
Step 112: 67599 + 609 = 68208

So, 609*112 = 68208